1255408896 has 144 divisors (see below), whose sum is σ = 3836375424. Its totient is φ = 357015552.

The previous prime is 1255408873. The next prime is 1255408897. The reversal of 1255408896 is 6988045521.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255408897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1574770 + ... + 1575566.

It is an arithmetic number, because the mean of its divisors is an integer number (26641496).

Almost surely, 2^1255408896 is an apocalyptic number.

1255408896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1255408896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1918187712).

1255408896 is an abundant number, since it is smaller than the sum of its proper divisors (2580966528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1255408896 is an equidigital number, since it uses as much as digits as its factorization.

1255408896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116 (or 1102 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 48.

The square root of 1255408896 is about 35431.7498297784. The cubic root of 1255408896 is about 1078.7688577279.

The spelling of 1255408896 in words is "one billion, two hundred fifty-five million, four hundred eight thousand, eight hundred ninety-six".